Improvement in gas-furnaces



' W. S. GILLEN.

GAS-FURNACE.

No.175,068. Patented March 2131876.

NJ'ETERS, PHOTO-UTNOGRAPMER, WASHINGTON. D C. A

UNITED STATES PATENT. OFFICE.

WILLIAM s. GILLEN, oF PITIsBURe, AssIeNoR To DAVID B. ASHBAUGH,

0F LEEGHBURG, PENNSYLVANIA.

IMPROVEMENT IN GAS-FURNACES.

Specification forming part ot' Letters Patent No. 175,068. dated March 21, 1876; application led May 2e, 1875.

To all 'whom it may concern:

Be it known that I, WILLIAM S. GILLEN, of the city of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in the Process and Apparatus for Preparing4 ing drawings, and to the letters of reference marked thereon, which form a part of this specification.

The lirst part of' my invention relates to a heater and steamgenerator constructed of any material of sufficient strength to withstand a pressure of steam, and of such size thatthe gas-supply pipe may be passed through and covered with water, or it may be made drumshape, allowing the pipe to pass through; the water-chamber is supplied with water by a pipe leading'from a reservoir of water; the flow is regulated by a stop-cock. The water in the chamber is heated by a small gas-pipe leading from the gas-supply pipe, under and along the water-chamber, having perforations on the upper side; this heater is so close to the under side of the water-chamber that, when the gas which is intended to escape from the perforations is ignited, the iiame strikes up and around the water-chamber, heating the water, which generates steam. The boiling water heats the gasinits passage through the pipe into the furnace. The flow of gas into "this heater is regulated by a stopcock near the connection with the gas-supply pipe. The section of the supply-pipe which passes through the water-chamber is soarranged that it can be moved forward or backward, the ends of the water-chamber being packed around the supply-pipe with any material that will prevent leaking and at the same time allow the pipe to be moved. The end of the watercha1nber is placed close to or against the furnace. The end of this supplypipe which extends into the furnace has a burner attached, longitudinal in shape, with perforations; the gas passes into the burner and out through the perforations into the furnace whore it is ignited. The flow of gas through the burner is regulated by aregisterslide working over the perforations in the inpushed up close to it, and as the furnace and metal become heated the burner can be drawn back. The other end of the section from the furnace is telescoped into the gas supply pipe-that is, it works into the pipe and is packed around the supply-section to prevent leaking, while it admits of being moved backward and forward. This is done by placing a cog-wheel with a crank underneath the section of the pipe near the end of the waterchamber, where the pipe is provided with a cog-rod or cogs on the under side, which work in the wheel, or the cog-rod may be attached, one end to the section ofthe gas-pipe and the other working over the cog-wheel, supported by any frame-work of sufficient strength. The burner ismoved in either direction, forward or backward, by turning the crank. Should the drum-shaped water-chamber be used, the gas-pipe used for heating can be passed into the water-chamber with the supply-pipe; the gas being ignited will heat the pipe, dry the gas, and at the same time generate steam by heating the Water.

The second part of my invention relates to the process of mingling the steam generated in the water-chamber or other steam-generator with the gas in the furnace, thus acquiring a greater degree of heat from less fuel than by any other method. rDhis is accomplished by conducting the steam as it is generated in the water-chamber by a pipe or pipes leading into the furnace, where it is discharged under the burner; this gives a complete and perfect mingling of gas and steam.

The accompanying drawings represent a plan View of the device and more fully explain its workings.

A is the end of the gas-supply pipe into which the section-pipe C works. D is the water chamber, through which the section-pi pe U Works. R is the pipe which supplies the waterchamber D with Water; the stop-cock a icgulates the flow. The heating-pipe E extends under the water-chamber D, has peribrations on the upper side, where the gas escaping is ignited, heating the water in the Water-chamber D, and generatiugsteam. The heated or boiling Water around the pipe C heats the gas in its passage to the burner E' inside the furnace, which is attached to the pipe C. The steam is conducted from the water-chamber D into the furnace by pipe or pipes d, and is discharged under the burner E', through the perforations of which the gas from the supply-pipes A and C flows into the furnace, and is regulated by the register-slide H, which is Worked by the lever h attached to the end ofthe burner E'. The pipe U and burner E are moved either forward or backward by a cog-rod, F, attached to the pipe C near the end of the water-chamber D, which works over a small cog-wheel, f, which works in a larger cog-Wheel with a crank, g. These ure'fastened to a post or framework, G, or the cog-rod F may be fastened to the under side ofthe pipe and the cog-wheels f and g placed in a frame-Work directly underneath. By turning the crank-wheel g the pipe C and burner E can he drawn to the front of the furnace, the pipe C working through thei water-chamber D, and into the gas-supply pipe A. The flow of gas through pipe C is regulated by a stopcock, Il. The gas in the heating-pipe E is regulated by a stop-cock, z'. This enables the commingling of the gas in the furnace with steam by having it discharged through the pipe or pipes d under the burner E'. The cog-rod F is regulated to the cogwheel f by a set-screw, e.

Having thus described my invention, what Y I claim as new, and desire to secure by Letters Patent., is-

1. The burner E', with the means by which it can be regulated or adjusted in the furnace to correspond with the degree of heat, by cog-rod F, cog-Wheels f, crank and cog- Wheel g, as attached by section-pipe C, for the purposes hereinbefore specified.

2. The heater-pipe E, water-chamber D, with the pipes A and C, cog-rod F, cog-wheels j, crank and cog-wheel g, burner E', steam pipe or pipes d in combination, for the purposes hereinhefore specified.

In testimony that@ claim the foregoing as my own I have aflxed my signature in presence of two Witnesses.

W. S. GILLEN. Witnesses:

H. C. CAMPBELL, CHAs. T. TYLER. 

